994526640 has 160 divisors (see below), whose sum is σ = 3440256000. Its totient is φ = 264072960.

The previous prime is 994526623. The next prime is 994526641. The reversal of 994526640 is 46625499.

994526640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (994526641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 584511 + ... + 586209.

It is an arithmetic number, because the mean of its divisors is an integer number (21501600).

Almost surely, 2^994526640 is an apocalyptic number.

994526640 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 994526640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1720128000).

994526640 is an abundant number, since it is smaller than the sum of its proper divisors (2445729360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

994526640 is a wasteful number, since it uses less digits than its factorization.

994526640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992 (or 1980 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 994526640 is about 31536.1164381412. The cubic root of 994526640 is about 998.1722078781.

It can be divided in two parts, 9945 and 26640, that added together give a triangular number (36585 = T₂₇₀).

The spelling of 994526640 in words is "nine hundred ninety-four million, five hundred twenty-six thousand, six hundred forty".